OK, let's work through this together. We're starting with 698 and we're going to multiply it by 73, which means we add 698 to itself 73 times.
Step 1: 0 + 698 = 698
Step 2: 698 + 698 = 1396
Step 3: 1396 + 698 = 2094
Step 4: 2094 + 698 = 2792
Step 5: 2792 + 698 = 3490
Step 6: 3490 + 698 = 4188
Step 7: 4188 + 698 = 4886
Step 8: 4886 + 698 = 5584
Step 9: 5584 + 698 = 6282
Step 10: 6282 + 698 = 6980
Step 11: 6980 + 698 = 7678
Step 12: 7678 + 698 = 8376
Step 13: 8376 + 698 = 9074
Step 14: 9074 + 698 = 9772
Step 15: 9772 + 698 = 10470
Step 16: 10470 + 698 = 11168
Step 17: 11168 + 698 = 11866
Step 18: 11866 + 698 = 12564
Step 19: 12564 + 698 = 13262
Step 20: 13262 + 698 = 13960
Step 21: 13960 + 698 = 14658
Step 22: 14658 + 698 = 15356
Step 23: 15356 + 698 = 16054
Step 24: 16054 + 698 = 16752
Step 25: 16752 + 698 = 17450
Step 26: 17450 + 698 = 18148
Step 27: 18148 + 698 = 18846
Step 28: 18846 + 698 = 19544
Step 29: 19544 + 698 = 20242
Step 30: 20242 + 698 = 20940
Step 31: 20940 + 698 = 21638
Step 32: 21638 + 698 = 22336
Step 33: 22336 + 698 = 23034
Step 34: 23034 + 698 = 23732
Step 35: 23732 + 698 = 24430
Step 36: 24430 + 698 = 25128
Step 37: 25128 + 698 = 25826
Step 38: 25826 + 698 = 26524
Step 39: 26524 + 698 = 27222
Step 40: 27222 + 698 = 27920
Step 41: 27920 + 698 = 28618
Step 42: 28618 + 698 = 29316
Step 43: 29316 + 698 = 30014
Step 44: 30014 + 698 = 30712
Step 45: 30712 + 698 = 31410
Step 46: 31410 + 698 = 32108
Step 47: 32108 + 698 = 32806
Step 48: 32806 + 698 = 33504
Step 49: 33504 + 698 = 34202
Step 50: 34202 + 698 = 34900
Step 51: 34900 + 698 = 35598
Step 52: 35598 + 698 = 36296
Step 53: 36296 + 698 = 36994
Step 54: 36994 + 698 = 37692
Step 55: 37692 + 698 = 38390
Step 56: 38390 + 698 = 39088
Step 57: 39088 + 698 = 39786
Step 58: 39786 + 698 = 40484
Step 59: 40484 + 698 = 41182
Step 60: 41182 + 698 = 41880
Step 61: 41880 + 698 = 42578
Step 62: 42578 + 698 = 43276
Step 63: 43276 + 698 = 43974
Step 64: 43974 + 698 = 44672
Step 65: 44672 + 698 = 45370
Step 66: 45370 + 698 = 46068
Step 67: 46068 + 698 = 46766
Step 68: 46766 + 698 = 47464
Step 69: 47464 + 698 = 48162
Step 70: 48162 + 698 = 48860
Step 71: 48860 + 698 = 49558
Step 72: 49558 + 698 = 50256
Step 73: 50256 + 698 = 50954

So, 698*73 = 50954